Auto Barn
Est. 1957
Manley Performance

Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT

$3360.84

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT. Built with 4340 forged steel and 2618 aluminum for up to 1500 HP.

Key Features

  • Fits SBC 355 engines with a 3.480-inch stroke.
  • Features a lightweight 4340 forged steel crankshaft.
  • Includes 4340 forged steel H-beam connecting rods with 7/16? ARP 8740 cap screws.
  • Optional ARP 2000 cap screws are available for increased horsepower capacity.
  • Comes with 2618 forged aluminum Platinum Series pistons.
  • Includes Premium Chrome Moly wrist pins.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

Built from lightweight 4340 forged steel, this Manley rotating assembly is designed for serious performance in your SBC 355 engine. The 3.480-inch stroke crankshaft is the heart of this package, paired with robust 4340 forged steel H-beam connecting rods. These rods come standard with 7/16? ARP 8740 cap screws, but can be upgraded to ARP 2000 screws for even greater strength.

The included 2618 forged aluminum Platinum Series pistons are a lightweight choice, featuring Premium Chrome Moly wrist pins for durability. This combination is engineered to handle a significant horsepower range. With the standard ARP 8740 cap screws, this assembly is rated for up to 750 horsepower. Opting for the ARP 2000 cap screws raises that capability to an impressive 1,500 horsepower, making it suitable for high-performance builds where power is a priority.

Please note that this assembly is not CARB approved and cannot be shipped to California. Always consult manufacturer documentation for complete installation details and any additional components required for your specific build.

Specifications

Brand
Manley Performance
Manufacturer Part #
290740HX
UPC
807298115207

Frequently Asked Questions

Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT

$3360.84